Open Watcom FORTRAN 77 Language Reference

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<strong>Language</strong> <strong>Reference</strong> 12.3.53 Binary Pattern Processing Functions: Bit Testing Definition: Name: BTEST (generic) BTEST I1BTEST I2BTEST Test bit - a2’th bit of a1 is tested. If it is 1, .TRUE. is returned. If it is 0, .FALSE. is returned. Usage: L ←BTEST(I,I), L ←BTEST(I1,I1), L ←BTEST(I2,I2) L ←BTEST(I,I) L ←I1BTEST(I1,I1) L ←I2BTEST(I2,I2) 12.3.54 Binary Pattern Processing Functions: Set Bit Definition: Name: IBSET (generic) IBSET I1IBSET I2IBSET Set bit - Return a1 with a2’th bit set. Usage: I ←IBSET(I,I), I1 ←IBSET(I1,I1), I2 ←IBSET(I2,I2) I ←IBSET(I,I) I1 ←I1BSET(I1,I1) I2 ←I2BSET(I2,I2) 12.3.55 Binary Pattern Processing Functions: Clear Bit Definition: Name: IBCLR (generic) IBCLR I1IBCLR I2IBCLR Clear bit - Return a1 with a2’th bit cleared. Usage: I ←IBCLR(I,I), I1 ←IBCLR(I1,I1), I2 ←IBCLR(I2,I2) I ←IBCLR(I,I) I1 ←I1BCLR(I1,I1) I2 ←I2BCLR(I2,I2) 268 Intrinsic Functions
Functions and Subroutines 12.3.56 Binary Pattern Processing Functions: Change Bit Definition: Name: Change bit - Return a1 with a2’th bit complemented. Usage: IBCHNG (generic) I ←IBCHNG(I,I), I1 ←IBCHNG(I1,I1), I2 ←IBCHNG(I2,I2) IBCHNG I1IBCHNG I2IBCHNG I ←IBCHNG(I,I) I1 ←I1BCHNG(I1,I1) I2 ←I2BCHNG(I2,I2) 12.3.57 Binary Pattern Processing Functions: Arithmetic Shifts Definition: Name: LSHIFT (generic) LSHIFT I1LSHIFT I2LSHIFT Definition: Name: RSHIFT (generic) RSHIFT I1RSHIFT I2RSHIFT lshift(j,n) Arithmetic left shift Usage: I ←LSHIFT(I,I), I1 ←LSHIFT(I1,I1), I2 ←LSHIFT(I2,I2) I ←LSHIFT(I,I) I1 ←I1LSHIFT(I1,I1) I2 ←I2LSHIFT(I2,I2) rshift(j,n) Arithmetic right shift Usage: I ←RSHIFT(I,I), I1 ←RSHIFT(I1,I1), I2 ←RSHIFT(I2,I2) I ←RSHIFT(I,I) I1 ←I1RSHIFT(I1,I1) I2 ←I2RSHIFT(I2,I2) Notes: With these shift functions, n must be a non-negative integer. In an arithmetic shift, j is considered a signed integer. In the case of a left shift, zeros are shifted into the right and bits shifted out of the left are lost. In the case of a right shift, zeros are shifted into the left if j is positive and ones if j is negative. Bits shifted out of the right are lost. If n is equal to 0, no shift is performed. Note that the arguments are not modified. These functions are compiled as in-line code unless they are passed as arguments. Intrinsic Functions 269
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Open Watcom FORTRAN 77 Language Ref
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Preface Open Watcom FORTRAN 77 is a
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Table of Contents 2.25 ELSE IF Stat
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Table of Contents 3.4.10 Hexadecima
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Table of Contents 11.7 Editing ....
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Table of Contents 12.6.1 ENTRY Stat
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Language Reference 2
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Language Reference 1.3 Source Progr
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Language Reference Example: * From
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Language Reference 8 Order of FORTR
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Language Reference Statement 1 2 3
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Language Reference 2.3 ADMIT Statem
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Language Reference If there is a LO
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Language Reference 2.5 Statement La
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Language Reference 2.6 AT END State
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Language Reference The FORTRAN 77 s
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Language Reference 6. A named block
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Language Reference It is important
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Language Reference 2.11 CHARACTER S
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Language Reference If a symbolic na
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Language Reference Example: LOOP RE
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Language Reference Example: REAL A,
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Language Reference a (d) len is an
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Language Reference 2.15 CONTINUE St
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Language Reference 2.17 DATA Statem
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Language Reference 2. As an extensi
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Language Reference 2.18 DEALLOCATE
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Language Reference 2.19 DIMENSION S
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Language Reference Transfer of cont
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Language Reference Example: * Illeg
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Language Reference c r is a constan
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Language Reference c r is a constan
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Language Reference 2.24 ELSE Statem
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Language Reference 2.26 END Stateme
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Language Reference 2.28 END BLOCK S
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Language Reference 2.30 ENDFILE Sta
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Language Reference 2.31 END GUESS S
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Language Reference 2.33 END LOOP St
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Language Reference 2.35 END SELECT
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Language Reference 2.37 END UNION S
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Language Reference 2.39 ENTRY State
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Language Reference The following ex
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Language Reference 2.42 EXIT Statem
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Language Reference 2.44 FORMAT Stat
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Language Reference 2.45.2 Extended
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Language Reference 2.47 Computed GO
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Language Reference * Illegal use of
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Language Reference 2.50 Arithmetic
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Language Reference An example of an
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Language Reference IF( I .EQ. 10 )T
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Language Reference 2.53.3 IMPLICIT
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Language Reference 2.54 INCLUDE Sta
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Language Reference Example: LOGICAL
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Language Reference It is assigned t
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Language Reference 3. This specifie
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Language Reference 2.57 INTRINSIC S
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Language Reference 2.59 LOOP Statem
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Language Reference 2.61 NAMELIST St
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Language Reference Example: &PERSON
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Language Reference FILE = fin fin i
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Language Reference Notes: 1. If the
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Language Reference 2.64 PARAMETER S
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Language Reference 2.66 PRINT State
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Language Reference Example: PRINT 1
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Language Reference 2.68 QUIT Statem
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Language Reference 2. An internal f
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Language Reference Example: READ( 8
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Language Reference 2.71 RECORD Stat
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Language Reference 2.73 RETURN Stat
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Language Reference Notes: 1. The un
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Language Reference PROGRAM MAIN . .
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Language Reference Example: SELECT
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Language Reference 2.78 STRUCTURE S
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Language Reference 2.80 UNION State
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Language Reference 2.82 VOLATILE St
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Language Reference 2.84 WHILE State
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Language Reference REC = rn IOSTAT
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Language Reference 150
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Language Reference Example: DO10I=1
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Language Reference 123.764 .4352344
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Language Reference Actually, holler
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Language Reference 158 Symbolic Con
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Language Reference [lo:] hi where:
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Language Reference 4.4 Classifying
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Language Reference 4.5 Classifying
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Language Reference Example: CHARACT
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Language Reference STRUCTURE /PERSO
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Language Reference SUBROUTINE PRINT
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Language Reference 172 Unions
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Language Reference Operator Arithme
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Language Reference 7.1.3 Arithmetic
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Language Reference 7.2 Character Ex
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Language Reference where: relop is
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Language Reference Note that the op
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Language Reference 1. logical term
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Language Reference 186 Constant Exp
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Language Reference 8.3 Logical Assi
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Language Reference 8.6 Extended Ass
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Language Reference 192 Extended Ass
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Language Reference Examples follow
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Language Reference 9.4 DO - END DO
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Language Reference The next example
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Language Reference where: stmt is a
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Language Reference Example: * Illeg
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Language Reference - the string -10
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Language Reference 9.12 GUESS-ADMIT
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Language Reference 9.13 QUIT QUIT [
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Language Reference Example: LOOP RE
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Language Reference READ statement t
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Language Reference 214 Notes on Str
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Language Reference 10.3 Records FOR
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Page 232 and 233: Language Reference Example: WRITE(1
Page 234 and 235: Language Reference 5. Any character
Page 236 and 237: Language Reference 224 Printing of
Page 238 and 239: Language Reference Example: REAL X
Page 240 and 241: Language Reference 11.6 Nonrepeatab
Page 242 and 243: Language Reference Example: PRINT
Page 244 and 245: Language Reference Example: INTEGER
Page 246 and 247: Language Reference 11.7.10.4 E and
Page 248 and 249: Language Reference n Example: is 4
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Page 252 and 253: Language Reference 3. An input item
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Page 260 and 261: Language Reference 12.3.2 Type Conv
Page 262 and 263: Language Reference 12.3.7 Type Conv
Page 264 and 265: Language Reference 12.3.13 Remainde
Page 266 and 267: Language Reference 12.3.18 Choosing
Page 268 and 269: Language Reference 12.3.24 Square R
Page 270 and 271: Language Reference 12.3.28 Sine Def
Page 272 and 273: Language Reference 12.3.33 Arccosin
Page 274 and 275: Language Reference 12.3.38 Gamma Fu
Page 276 and 277: Language Reference 12.3.45 Lexicall
Page 278 and 279: Language Reference Definition: Name
Page 282 and 283: Language Reference 12.3.58 Allocate
Page 284 and 285: Language Reference Example: INTEGER
Page 286 and 287: Language Reference 2. An array name
Page 288 and 289: Language Reference 5. A name that a
Page 290 and 291: Language Reference 12.8.1 Dummy Arg
Page 292 and 293: Language Reference Example: DIMENSI
Page 294 and 295: Language Reference 282 Subprogram A
Page 296 and 297: Appendices 284
Page 298 and 299: Appendices 10. The DOUBLE COMPLEX s
Page 300 and 301: Appendices 36. Non-character arrays
Page 303 and 304: Index AMAX1 253 AMIN0 254 $ AMIN1 2
Page 305 and 306: Index DATAN 260 dummy procedure 280
Page 307 and 308: Index AINT 250 ANINT 251 ASIN 259 H
Page 309 and 310: Index DREAL 249 IAND 264 DSIGN 252
Page 311 and 312: Index RETURN 32, 46, 56, 121, 132,
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Open Watcom FORTRAN 77 Language Reference

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